https://paiza.io/projects/9pltmqnhRB26-YoLB0FD8Q?language=php
https://paste2.org/HmnH82pH
https://hackmd.io/s/S12XuC7pJg
https://paiza.io/projects/R5cdpUYnQvDmRXWvc0bfVw?language=php
https://paste2.org/z70wd5XM